|Optimally Learnt, Neural Network Based Autonomous Mobile Robot Navigation System|
Neural network based systems have been used in past years for robot navigation applications because of their ability to learn human expertise and to utilize this knowledge to develop autonomous navigation strategies. In this paper, neural based systems are developed for mobile robot reactive navigation. The proposed systems transform sensors’ input to yield wheel velocities. Novel algorithm is proposed for optimal training of neural network...
Keywords: Mobile robot; Reactive navigation; Neural Network; Optimal learning; Supervised learning
|Autonomous Parallel Parking Methodology for Ackerman Configured Vehicles|
Parallel parking is challenge for all drivers say amateurs or the experts. An automatic car parking system is a solution to this ordeal. This vehicular technology has been implemented using many other systems but a cost effective, simple and accurate solution will be greatly appreciated. This paper explains in detail a simple and precise autonomous carparking algorithm for Ackerman steering configuration...
Keywords: Automatic Parking System; Path Planning; Tracking Algorithm; Parallel Parking; Parking Sensors
|Static Synchronous Series Compensator (SSSC) with Superconducting Magnetic Energy Storage (SMES) for the Enhancement of Transient Stability in Multi- Area System|
Static Synchronous Series Compensator (SSSC) has been designed with Superconducting Magnetic Energy Storage (SMES) system. A closed loop control scheme has been proposed with PI controller and real and reactive powers are taken as references. A 48 pulse voltage source inverter is designed for the SSSC. Control scheme for the chopper circuit of SMES coil is also designed. A three area system is taken as the test system and the operation of SSSC with SMES is analysed for various transient disturba...
Keywords: SSSC; SMES; Transient stability; voltage source inverter; closed loop control
|Multidimensional scaling algorithm and its current applications in wireless localization|
The paper gives an overview of multidimensional scaling (MDS) algorithm. Aside from brief introduction to MDS, its characteristics, its various types and its current applications has been discussed in wireless systems i.e. localization of wireless sensors in a network and determining the position of a mobile station without GPS. MDS is analgorithm by means of which information contained in a set of data is represented by a set of points in a low dimensional space...
Keywords: MDS algorithm; MDS types; MDS current applications; localization
|Image Fusion of Video Images and Geo-localization for UAV Applications|
We present in this paper a very fine method for determining the location of a ground based target when viewed from an Unmanned Aerial Vehicle (UAV). By determining the pixel coordinates on the video frame and by using a range finder the target’s geo-location is determined in the North- East-Down (NED) frame. The contribution of this method is that the target can be localized to within 9m when view from an altitude of 2500m and down to 1m from an altitude of 100m.This method offers a highly ver...
Keywords: UAV Applications
|520Criticality of Gust Pressures on the Members of Self Standing Towers - Ides Editor|
Tall latticed steel towers are being pursued for the purpose of microwave transmission, T.V. transmission etc. Antennas are fixed at the top of the tower for transmission. The height of the towers may range from 50m to 250m. The structural form consists of latticed steel work, suitable bracing and suitable foundation for the tower legs. Usually bolted connections are provided for the joints. Mainly dead and wind loads are considered for the design of such towers...
Keywords: Gust Pressures; Frequency; Resonance
|Wind Energy Validation Using Available Wind Potential - Prof. Hapse Manik M., Dr. A.G. Thosar, Prof. Sanjay M. Shinde and Prof. Satish A. Markad|
This paper analyzes the probability distribution of wind speed data recorded by Maharashtra Energy Development Agency (MEDA) wind farm at Ahmednagar (India). The main objective is to validate the wind energy probability by using probability distribution function (PDF) of available wind potential. The wind speed is measured with the help of three anemometers S30, S45, S60 placed at 30 m, 45 m, and 60 m height...
Keywords: probability distribution function; weibull distribution; maximum likelihood; lognormal distribution; goodness of fit; wind energy probability
|An Attempt to Automate the Process of Source Evaluation - Sonal Aggarwal and Herre Van Oostendorp|
Credibility of a web-based document is an important concern, when a large number of documents is available on internet for a given subject. In this paper, various criteria that affect the credibility of a document are explored. An attempt is made to automate the process of assigning a credibility score to a web-based document. Presently the prototype of the tool developed is restricted to only four criteria – type of website, date of update, sentiment analysis and a pre-defined Google page ran...
Keywords: credibility score; source evaluation; automation; web-based multiple documents
|A Sensitive Wavelet-Based Algorithm for Fault Detection in Power Distribution Networks - Ides Editor|
This paper presents a wavelet based technique for detection and classification of abnormal conditions that occur on power distribution lines. The transients associated with these conditions contain a large spectrum of frequencies, which are analyzed using wavelet transform approach. The proposed technique depends on a sensitive fault detection parameter (denoted SFD) calculated from wavelet multi-resolution decomposition of the three phase currents...
Keywords: Wavelet Transform; Fault detection; Distribution Networks; Inrush currents
|Effect of Superplasticizer and Silica Fume on Properties of Concrete - Ides Editor|
Nowadays high strength and high performance concrete are widely used in many civil engineering constructions. To produce them it is required to reduce the water/powder ratio and increase the binder content. Superplasticizers are commonly used to achieve the workability. Silica fume is one of the popular pozzolanas used in concrete to get imporved properties. The use of silica fume in conjuction with superplastisizers has become the backbone of high strength and high performance concrete...
Keywords: high strength concrete; high performance concrete; superplastcizer; silica fumeI
|Light Triggering Thyristor for HVDC and other Applications|
High-power thyristors with direct light –triggering and integrated protection functions can be utilized advantageously for applications in which several thyristors are connected in series. This applies in particular to High-Voltage DC (HVDC) transmission, Static Var Compensation (SVC), converters for medium voltage drives, and also to certain pulse power applications. Recent progress in both device innovations and optimization of some application systems is reviewed in this article.
Keywords: HVDC; Light Triggering thyristors; SVC VLF and OWT
|Analysis and Simulation of Sub-threshold Leakage Current in P3 SRAM Cell at DSM Technology for Multimedia Applications|
In this work, the analysis and simulation work is proposed for the low-power (reduced subthreshold leakage) and high performance SRAM bit-cells for mobile multimedia applications in deep-sub-micron (DSM) CMOS technology. The sub-threshold leakage analysis of the P3 SRAM cell has been carried out. It has been observed that due to pMOS stacking and full supply body-biasing, there is a reduction of 70% and 86% in sub-threshold leakage current at VDD=0.8V and VDD=0.7V respectively as compared to con...
Keywords: Sub-threshold Leakage; Standby Power; Stacking; Conventional SRAM cell; PP-SRAM; P3-SRAM
|Estimation of Weekly Reference Evapotranspiration using Linear Regression and ANN Models - Ides Editor|
The study investigates the applicability of linear regression and ANN models for estimating weekly reference evapotranspiration (ET0) at Tirupati, Nellore, Rajahmundry, Anakapalli and Rajendranagar regions of Andhra Pradesh. The climatic parameters influencing ET 0 were identified through multiple and partial correlation analysis. The sunshine, temperature, wind velocity and relative humidity mostly influenced the study area in the weekly ET0 estimation...
Keywords: Reference evapotranspiration; multiple linear regression; artificial neural network; performance evaluation
|Cross Lingual Information Retrieval Using Search Engine and Data Mining|
With the explosive growth of international users, distributed information and the number of linguistic resources, accessible throughout the World Wide Web, information retrieval has become crucial for users to find, retrieve and understand relevant information, in any language and form. Cross- Language Information Retrieval (CLIR) is a subfield of Information Retrieval which provides a query in one language and searches document collections in one or many languages but it also has a specific mea...
Keywords: Cross Lingual Information Retrieval; Heuristic Method; Text Categorization
|A New Method of Determining Instability of Linear System - Ides Editor|
In this paper, an algorithm is presented for identification of real eigenvalues on right half of the s-plane, for linear systems, hence determining instability of the system. The proposed approach is based on Gerschgorin theorem and a new approach of Bisection method. The method is efficient since there is no need to determine all real eigenvalues and also characteristic polynomial of the system matrix...
Keywords: Instability; System matrix; Gerschgorin theorem; Bisection method; Power system problem
|A Temperature-insensitive Simple Current-mode Multiplier/Divider Employing Only Multiple-output CDTA|
This article presents a new current-mode multiplier/divider based on MO-CDTA (Multiple output current conveyor transconductance amplifier). The circuit description is very simple, its construction consists of only one MO-CDTA. Without external passive elements, theproposed circuit is then suitable for IC architecture. The PSpice simulation and experimental results are depicted, and agree well with the theoretical anticipation...
Keywords: multiplier/divider; current-mode; MO-CDTA
|Overview of Existing Methods of Spam Mining and Potential Usefulness of Sender’s Name as Parameter for Fuzzy String Matching|
This paper gives an overview and analyzes the different existing anti spamming techniques both content based, non content based methods and a combination of the duo. It also suggests that a small change in one of the parameters in the fuzzy string matching method could be useful to produce better results.
Keywords: email; spam; computer forensics; fuzzy string match
Modern Enterprise Software Systems entail many challenges such as rapidly changing business scenario, increase in complexity, and shorter time to market and providing business agility without compromising on the quality. Ensuring productivity, quality, consistency, cost effective, reduced cycle time have become a mandate for the teams dealing with modern enterprise software systems. Fluent Interfaces is a powerful technique, which help in taming the programming complexities, reducing boilerplate...
Keywords: Fluent Interfaces; Enterprise Software Systems; Application Programmable Interface (API). Domain Specific Languages
|Despeckling of Ultrasound Imaging using Median Regularized Coupled Pde|
This paper presents an approach for reducing speckle in ultrasound images using Coupled Partial Differential Equation (CPDE) which has been obtained by uniting secondorder and the fourth-order partial differential equations. Using PDE to reduce the speckle is the noise-smoothing methods which is getting attention widely, because PDE can keep the edge well when it reduces the noise. We also introduced a median regulator to guide energy source to boost the features in the image and regularize th...
Keywords: Ultrasound; Speckle; PDE; median filter
|A Novel Method for Image Enhancement|
In this paper a novel method for image enhancement using PDTDFB (Pyramidal Dual-Tree Directional Filter Bank) and interpolation has been adopted. Generally, in digital images since the different kinds of noise highly affects various image processing techniques it is always better to perform denoising first. Here, first of all the image is decomposed into two different layers namely low pass sub band and high pass sub band after which denoising is being performed on both the layers so as to smoot...
Keywords: High Resolution; PDTDFB; Denoising; Interpolation; Image Composition
|Dynamic Sub-Channel Allocation in Multiuser OFDM Systems to Achieve Variable Data Rate - Ides Editor|
This paper investigates the problem of dynamic multiuser subchannel allocation in the downlink OFDM systems. In traditional TDMA or FDMA systems, resource allocation for each user is non-adaptively fixed. Since the subchannel allocations among the users are not optimized, a group of users is likely to suffer from poor channel gains resulting from large path loss and random fading. To resolve this problem a low-complexity adaptive subchannel allocation algorithm is proposed in this paper...
Keywords: OFDM; Sub-Channel; Multiuser; Variable Data Rate
|Data Management In Cellular Networks Using Activity Mining|
In the recent technology advances, an increasing number of users are accessing various information systems via wireless communication. The majority users in a mobile environment are moving and accessing wireless services for the activities they are currently unavailable inside. We propose the idea of complex activity for characterizing thecontinuously changing complex behavior patterns of mobile users...
Keywords: Activity mining; Prefectching; pushing; proactive data management; Genetic Algorithm
|Modeling and simulation of fourteen bus system employing D-STATCOM for power quality improvement|
This work deals with modeling and simulation of fourteen bus system employing D-STATCOM for power quality improvement. The improvement in voltage stability with D-STATCOM is presented. A 11 level inverter based DSTATCOM is proposed to reduce the harmonics in the output. Voltages at various buses with and without D-STATCOM are presented. The simulation results are compared with the analytical results.
|Development and Testing of Feedback Control System for Fused Deposition by Electrochemical Discharge (FDED) Process|
Previous researches [1,2] on Fused Deposition through Electrochemical Discharge (FDED) process have revealed that the periodic instantaneous current wave form (ICWF) is the characteristic of the process and it is significant to maintain the nature of current waveform in order to have a deposition of consistent metallographic properties. The precise control of process parameters is essential for maintainingthe current wave form...
Keywords: Fused Deposition by Electrochemical Discharge; Feedback control; Discrete event control system; Proportional controller; Deposition rate
|Image Denoising Techniques Preserving Edges|
The objective of this work is to propose an image denoising technique and compare it with image denoising using ridgelets. The proposed method uses slantlet transform instead of wavelets in ridgelet transform. Experimental result shows that the proposed method is more effective than ridgelets in noise removal. The proposed method is effective in compressing images while preserving edges.
Keywords: ridgelet; slantlet transform; image denoising; compression; huffman; edge
|Sensor Aided Automatic Path Finding Wheelchair - Ides Editor|
A conventional motorized wheelchair has been fitted with sensors and programmed with an intelligent guidance system to efficiently maneuver itself automatically from one point to another in a facility equipped with a grid of sensors that provide the wheelchair with the basic map of its course. The device described in this paper has been conceptualized such that once the wheelchair is given information regarding the starting and stopping point in a controlled facility, the wheelchair with this pr...
Keywords: wheelchair; automatic; motorized; sensor aided; path finding
|Performance Comparison of Rerouting Schemes of Multi Protocol Label Switching Network.|
In this paper, we attempt to present a comparison through rigorous studies (existing conventional models) following software based modeling and verifications through simulations in terms of various traffic parameters such as packet loss, Recovery Time (Latency), reordering of packets including recovery time for various widely used path recovery models for the purpose of end-to-end recovery of LSPs inMPLS domains using NS2 simulator...
Keywords: MPLS .path -recovery; software modeling and simulations; traffic engineering; LSP (Label Switch Path); end-to-end delay; recovery time
|The Analysis of Dead Time on Switching Loss in High and Low Side MOSFETs of ZVS Synchronous Buck Converter|
This work is about the analysis of dead time variation on switching losses in a Zero Voltage Switching (ZVS) synchronous buck converter (SBC) circuit. In high frequency converter circuits, switching losses are commonly linked with high and low side switches of SBC circuit. They are activated externally by the gate driver circuit. The duty ratio, dead time and resonant inductor are the parameters that affect the efficiency of the circuit...
Keywords: PSpice Simulation; Resonant Gate Driver; Synchronous Buck Converter; Switching Losses
|Design and Analysis of Adaptive Neural Controller for Voltage Source Converter for STATCOM - Aman Ganesh, G.K.Singh, and Ratna Dahiya|
Usually a STATCOM is installed to support power system networks that have a poor power factor and often poor voltage regulation. It is based on a power electronics voltagesource converter. Various PWM techniques make selective harmonic elimination possible, which effectively control the harmonic content of voltage source converters. The distribution systems have to supply unbalanced nonlinear loads transferring oscillations to the DC-side of the converter in a realistic operating condition...
Keywords: STATCOM; voltage source converter; selective harmonic elimination; adaptive neural controller; total harmonic distortion
|A Refined Space Vector PWM Signal Generation for Multilevel Inverters|
A refined space vector modulation scheme for multilevel inverters, using only the instantaneous sampled reference signals is presented in this paper. The proposed space vector pulse width modulation technique does not require the sector information and look-up tables to select the appropriate switching vectors. The inverter leg switching times are directly obtained from the instantaneous sampled reference signal amplitudes and centers the switching times for the middle space vectors in a samplin...
Keywords: dual-fed induction motor; space vector PWM; sampled sinusoidal reference signals; triangular carrier signals; middle space vectors
|Resilient Characteristics of Stone Matrix Asphalt Mixes - Ides Editor|
Stone Matrix Asphalt (SMA) is a gap graded mix, characterized by high coarse aggregates, high asphalt contents and polymer or fiber additives as stabilizers. In comparison to dense graded mixtures SMA has higher proportion of coarse aggregate, lower proportion of middle size aggregate and higher proportion of mineral filler. It resists permanent deformation and has the potential for long term performance and durability...
Keywords: stone matrix asphalt; coconut fibre; repeated load indirect tensile test
|Thinned Concentric Circular Array Antennas Synthesis using Improved Particle Swarm Optimization - Durbadal Mandal, Debanjali Sadhu and Sakti Prasad Ghoshal|
Circular antenna array has gained immense popularity in the field of communications nowadays. It has proved to be a better alternative over other types of antenna array configuration due to its all-azimuth scan capability, and a beam pattern which can be kept invariant. This paper is basically concerned with the thinning of a large multiple concentric circular ring arrays of uniformly excited isotropic antennas based on Improved Particle Swarm Optimization (IPSO) method...
Keywords: Concentric Circular Antenna Arrays; Particle Swarm Optimization; Thinning; Sidelobe Level
|Illumination-robust Recognition and Inspection in Carbide Insert Production|
In processes of the production chain of carbide inserts, such as unloading or packaging, the conformity test of the insert type is performed manually, which causes a statistic increase of errors due to monotony and fatigue of workers as well as the wide variety of insert types. A measuring method is introduced that automatically inspects the chipformer geometry, the most significant quality feature ofinserts...
Keywords: optical measurement; industrial image processing; testing and inspection; local energy; phase congruency; feature description; Gabor wavelets; illumination invariance
|User-Rating Based QoS Aware Approach for Selection of Updated Web Services to Web Service Composition - K.Vivekanandan1 , S.Neelavathi, S.Subhashree, G.Kavitha, and S.Kavitha|
The concept of dynamic composition of Web services has been given major importance in the recent years. While there are many systems available to select the services with the highest QoS score, very little thought has been given to the fact of constructing a model which takes in the user’s rating of a service as a major input for selection. A robust system for fetching the most updated version of the selected services and selection of the services based on users’ ratings of the QoS values ra...
Keywords: Web Service selection; rating; updated services; aging factor
|On the Performance Analysis of Multi-antenna Relaying System over Rayleigh Fading Channel|
In this work, the end-to-end performance of an amplify-and-forward multi-antenna infrastructure-based relay (fixed relay) system over flat Rayleigh fading channel is investigated. New closed form expressions for the statistics of the received signal-to-noise ratio (SNR) are presented and applied for studying the outage probability and the average bit error rate of the digital receivers. The results reveal that the system performance improves significantly (roughly 3 dB) for M=2 over that for M=1...
Keywords: Diversity; fading channel; moment generating function(mgf); outage probability
|Energy Efficient and Process Tolerant Full Adder in Technologies beyond CMOS - Aminul Islam, M. W. Akram, Mohd. Hasan|
This paper presents 1-bit full adder cell in emerging technologies like FinFET and CNFET that operates in the moderate inversion region for energy efficiency, robustness and higher performance. The performance of the adder is improved by the optimum selection of important process parameters like oxide and fin thickness in FinFET and number of carbon nanotubes, chirality vector and pitch in CNFET. The optimized CNFET-based full adder (OP-CNFET) has higher speed, lower PDP (power-delay product) an...
Keywords: Variability; power-delay product (PDP); moderate inversion region (MIR); optimized FinFET-based full adder (OP-FinFET); optimized CNFET-based full adder (OP-CNFET)
|TCAD Based Analysis of Gate Leakage Current for High-k Gate Stack MOSFET - Ides Editor|
Scaling of metal-oxide-semiconductor transistors to smaller dimensions has been a key driving force in the IC industry. This work analysis the gate leakage current behavior of nano scale MOSFET based on TCAD simulation. The Sentaurus Simulator simulates the high-k gate stack structure of N-MOSFET for analysis purpose. The impact of interfacial oxide thickness on the gate tunneling current has been investigated as a function of gate voltages for a given equivalent oxide thickness (EOT) of 1.0 nm...
Keywords: MOESFET; inelastic trap assisted tunnelling; gate tunneling current; High-k stack
|Modeling, Analysis and Simulation of VFT for Power Flow Control through Asynchronous Power Systems|
Variable Frequency Transformer (VFT) is a controllable bi-directional transmission device that can transfer power between asynchronous networks. It avoids both HVDC link and FACTS based power transmission control system. Basically, it is a rotatory transformer whose torque is adjusted in order to control the power flow. In this paper, a simulated model of VFT is used as a controllable bidirectionalpower transmission device that can control power flow through the connected asynchronous power syst...
Keywords: Variable frequency transformer (VFT); MATLAB; Asynchronous power systems; Power flow
|Evolutionary Algorithmical Approach for VLSI Physical Design- Placement Problem|
Physical layout automation is very important in VLSI’s field. With the advancement of semiconductor technology, VLSI is coming to VDSM (Very Deep Sub Micrometer), and the scale of the random logic IC circuits goes towards million gates. Physical design is the process of determining the physical location of active devices and interconnecting them inside the boundary of the VLSI chip.The earliest and the most critical stage in VLSI layout design is the placement...
Keywords: Placement problems; Memetic algorithm; wire length minimization; area minimization
|Analysis of pavement management activities programming by particle swarm optimization - Navid Reza Tayebi, Fereidun Moghadasnejhad, Abolfazl Hassani|
The application of particle swarm optimization (PSO) to programming of pavement maintenance activities at the network level is demonstrated. The application of the PSO technique and its relevance to solve the programming problem in a pavement management system (PMS) are discussed. The robust and quick search capability of PSO enable it to effectively handle the highly constrained problem of pavement management activities programming, which has an extremely large solution space of astronomical ...
Keywords: Particle Swarm Optimization; Pavement Management System; Optimization
|Small Signal Stability Improvement and Congestion Management Using PSO Based TCSC Controller|
In this paper an attempt has been made to study the application of Thyristor Controlled Series Capacitor (TCSC) to mitigate small signal stability problem in addition to congestion management of a heavily loaded line in a multimachine power system. The Flexible AC Transmission System (FACTS) devices such as TCSC can be used to control the power flows in the network and can help in improvementof small signal stability aspect...
Keywords: Congestion management; Particle Swarm Optimization; Small Signal Stability; Thyristor Controlled Series Compensator; Transmission Line Flow Sensitivity
|Incremental Difference as Feature for Lipreading|
This paper represents a method of computing incremental difference features on the basis of scan line projection and scan converting lines for the lipreading problem on a set of isolated word utterances. These features are affine invariants and found to be effective in identification of similarity between utterances by the speaker in spatial domain.
Keywords: Incremental Difference Feature; Euclidean distance; Lipreading
|Coding and ANN - assisted Pseudo - Noise Sequence Generator for DS / FH Spread Spectrum Modulation for Wireless Channels - Juthika Gogoi and Kandarpa Kumar Sarma|
One of the challenging issues in Spread-Spectrum Modulation (SSM) is the design of the Pseudo - Random or Pseudo - Noise (PN) sequence generator as an option to the already available methods. This work is related to the use of Artificial Neural Network (ANN) for generation of the PN sequence during transmission and reception of a SSM based system. The benefit of the ANN - assisted PN generator shall be that it will simplify the design process of the PN - generator and yet provide high reliabilit...
Keywords: SSM; PN sequence; ANN; Rayleigh; Rician
|A PIC compatible RISC CPU core Implementation for FPGA based Configurable SOC platform for Embedded Applications|
Modern embedded systems are built around the soft core processors implemented on FPGA. The FPGAs being capable of implementing custom hardware blocks giving the advantage of ASICs, and allowing the implementation of processor platform are resulting in powerful Configurablesystem on chip(C-SoC)platforms. The Microchip’s PIC microcontroller is very widely used microcontroller architecture across various embedded systems...
Keywords: CPU; RISC; IP Core; IC; MXE; Xilix
|QRC-ESPRIT Method for Wideband Signals - Nizar Tayem|
In this paper, a new algorithm for a high resolution Direction Of Arrival (DOA) estimation method for multiple wideband signals is proposed. The proposed method proceeds in two steps. In the first step, the received signals data is decomposed in a Toeplitz form using the first-order statistics. In the second step, The QR decomposition is applied on the constructed Toeplitz matrix. Compared with existing schemes, the proposed scheme provides several advantages...
Keywords: array signal processing; uniform linear array; Wideband signal; Toeplitz matrix
|Exploring NISC Architectures for Matrix Application - Sadhna K. Mishra, Arvind Rajawat, and R. P. Singh|
The paper presents the design of target NISC (No Instruction Set Computer) architecture for matrix application in a C based design flow. It starts with the implementation of a standard application program which generates customized designs using the NISC toolset. Further, it demonstrates and analyzes the compilation and simulation results of several matrix applications on a number of different available NISC architectures in terms of register and execution cycle-counts...
Keywords: NISC; ASIP; CISC; RISC; Datapath
|A Novel Approach to Digital Gate Design|
Designing the digital gates and circuits has been based on separating the designing levels: circuit level designing and device level designing. In this paper, we will discuss the point that the concept of contact in this distinction is a key-concept and that, by the progress of technology and advancing towards very tiny quantum devices as SET, necessity of having contact, because of its size is considered a basic obstacle; therefore, separating the design into designing the circuit level and dev...
Keywords: Digital Gate; Contact; Macro-gate; KVL; KCL; Resonant tunneling diode
|Application of Solar Powered High Voltage Discharge Plasma for NOX Removal in Diesel Engine Exhaust|
This paper proposes a compact electric discharge plasma source for controlling NOX emission in diesel engine exhaust. Boost converter is used to boost to solar powered battery voltage to 24V, further an automobile ignition coil was used to generate the high voltage pulse using fly-back topology. This design is aimed at retrofitting the existing catalytic converters with pulse assisted cleaning technique...
Keywords: Electric Discharge; Non-thermal plasma; NOX removal; Diesel engine exhaust; Fly-back
|Possible Algorithms of 2NF and 3NF for DBNorma- A tool for Relational Database Normalization|
DBNorma  is a semi automated database normalization tool, which uses a singly linked list to store a relation and functional dependencies hold on it. This paper describes possible algorithms that can be used to normalize a given relation represented using singly linked list. Thesealgorithms are tested on various relational schemas collected from several research papers/resources and output validated...
Keywords: Relation; functional dependency; normalization; normal forms
|Intelligent Gradient Detection on MPPT Control for VariableSpeed Wind Energy Conversion System|
The problem of control associated wind energy conversion systems using horizontal-axis fixed-pitch variable speed low-power, working in the partial load region, consisting in the energy conversion maximization, is approached here under the assumption that the wind turbine model and its parameters are poorly known. Intelligent gradient detection method by using Maximum Power Point Tracking (MPPT) fuzzy control approach is proposed control solution aims at driving the average position of the opera...
Keywords: MPPT; wind energy; optimal control; WECS